Several polyamide 6/SiO2  nanocomposites  with varying amount of SiO2 were prepared using sol-gel technique. These nanocomposites were formed in situ by hydrolysis and condensation of TEOS and 88% formic acid was used as a solvent for nylon 6. The microstructure development during thermally �induced crystallization has been carried out with a combination of differential scanning calorimetry (DSC), FTIR and solid-state NMR spectroscopy.  IR spectroscopy and wide angle diffraction (WAXS) were used to determine the crystal form of nylon 6 at room temperature. DSC and FTIR spectroscopy showed a decrease in crystallinity with increasing TEOS loading as compared to neat polyamide 6. Scanning electron microscopy (SEM) and Transmission Electron Microscopy (TEM) was used to determine the particle size.  We plan to investigate crystallization kinetics, water absorption, thermal stability and mechanical properties of these nanocomposites with increasing SiO2 content and results also will be reported.

Formation and characterization of polyamide 6/SiO2 nanocomposites via sol-gel technique

243rd National Meeting (2012)

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